“My pay went up and I feel poorer in Brazil.” Some version of that sentence is the thing I hear most from people who earn in dollars and pay for a life in reais.
Nothing went wrong with the salary. The mismatch moved.
I am an investment advisor in Belo Horizonte, and this is the part that almost nobody has ever put a number on. You do not need a forecast to manage currency risk. You need one ratio, and you can calculate it in four minutes. Every figure below is a labelled example — look up the real exchange rate on the day you act.
Currency risk is a mismatch, not a currency
The dollar is not risky. The Brazilian real is not risky. Risk lives in the gap between the currency you are paid in and the currency your obligations are written in.
Two illustrative cases, identical pay of US$4,000 a month:
- Case 1. Lives abroad, rent and groceries in dollars, no obligations in Brazil. The exchange rate can halve or double and this person’s budget does not move by a cent. Zero currency risk, while holding a currency that moves every day.
- Case 2. Paid by a foreign company, living in Brazil, rent in reais. The pay never changes and the budget changes every month. Large currency risk, from the same paycheque.
Same currency, opposite exposure. Which is why “is the dollar a safe place to hold money” is the wrong question, and “what currency are my bills written in” is the right one.
Put a number on your own mismatch
Take Case 2 and make it concrete. Monthly obligations in reais: rent R$4,500, condo fee and utilities R$700, support for a parent R$1,000. Total R$6,200 a month that must be paid in reais, no matter what.
At an example rate of R$5.00 per US$1, US$4,000 of income is R$20,000 of Brazilian purchasing power. So R$6,200 ÷ R$20,000 = 31%.
Thirty-one percent of this income is exposed to the exchange rate. Sixty-nine percent is not. That ratio, not a prediction, is the thing you manage.
Here is what the same R$6,200 bill costs in dollars at three example rates:
| Example rate (R$ per US$1) | Cost of R$6,200 | Share of US$4,000 | Versus the R$5.00 line |
|---|---|---|---|
| R$4.50 — each dollar buys 10% fewer reais | US$1,377.78 | 34.4% | +US$137.78 |
| R$5.00 — the example starting point | US$1,240.00 | 31.0% | — |
| R$5.50 — each dollar buys 10% more reais | US$1,127.27 | 28.2% | −US$112.73 |
A 10% adverse move costs US$137.78 a month, which is 3.4% of gross income — roughly 10% of the 31% that was exposed. Over a year that is US$1,653 you never chose to spend, and it shows up as “things got expensive”, never as a line item.
Notice the asymmetry: the adverse move costs US$137.78 while the favourable one saves US$112.73. That is just division. Dividing by a smaller number bites harder than dividing by a bigger one helps, so a rate that swings symmetrically still costs you money on average.
The direction that surprises people
Read the table again. The line that hurts is the strong real — the one Brazilian headlines report as good news.
If you earn abroad and spend in Brazil, your budget is short the real. Every story about the real recovering is a story about your costs going up. Most people in this position have only ever rehearsed the other scenario, because they read the news from Brazil’s point of view rather than their own balance sheet’s.
It cuts the other way too. A Brazilian who earns reais and pays for imported equipment, software subscriptions or a trip abroad carries the mirror-image exposure, in the same amount, measured the same way.
The fix is structural, not predictive
You cannot forecast the exchange rate. Neither can I, and nobody selling you a view on it can either. This is not in the licensing exam — you learn it watching how confidently wrong everyone is at the start of each year.
What you can do is stop the mismatch from existing: hold the currency your obligations are written in. That is all a natural hedge is — matching, with the jargon removed.
At R$6,200 a month, six months of Brazilian obligations is R$37,200 — about US$7,440 at the example R$5.00. Once that sits in reais, half a year of your Brazilian costs is already funded in the right currency and the rate can do whatever it likes without touching your budget. That is not a bet on the real; it is the removal of a bet you were already carrying.
Then the monthly flow. Converting R$6,200 on a fixed date each month prices your purchasing power twelve times a year instead of once, which is the argument worked through in when to convert a dollar salary into reais and the rules that beat timing the rate.
Two cautions on the buffer. It has to be reachable on the day something breaks, so the split belongs in the structure of an emergency fund rather than bolted on afterwards — see how to hold an emergency fund in two currencies. And reais sitting still lose ground to Brazilian inflation, which is where fixed income and the Selic rate enter; what that headline rate is actually worth to a foreign earner is unpacked in what Brazil’s interest rate really pays someone who earns abroad. None of this is a personalized investment recommendation; it describes mechanisms, and what suits you depends on facts a post cannot know. Anything about declaring or filing goes to a contador, a Brazilian accountant.
The worksheet
Nine lines. Do it with your own numbers and the whole question stops being abstract.
| Step | What to write down | Example |
|---|---|---|
| 1 | Monthly obligations that must be paid in reais | R$6,200 |
| 2 | Monthly income, in the currency you are paid in | US$4,000 |
| 3 | An exchange rate — look up today’s, this one is an example | R$5.00 |
| 4 | Income expressed in reais (2 × 3) | R$20,000 |
| 5 | Your exposure share (1 ÷ 4) | 31% |
| 6 | Dollar cost of the reais today (1 ÷ 3) | US$1,240.00 |
| 7 | Dollar cost if each dollar buys 10% fewer reais (1 ÷ [3 × 0.9]) | US$1,377.78 |
| 8 | The monthly hit you are carrying (7 − 6) | US$137.78 |
| 9 | Buffer that neutralises it for six months (1 × 6) | R$37,200 (about US$7,440) |
Line 8 is the sentence to read out loud. If US$137.78 a month would change how you live, you are carrying more currency risk than you have agreed to. If it would not, you can stop reading about the exchange rate entirely — which is a real and underrated outcome of doing the arithmetic.
Four mistakes the ratio prevents
- Converting a year of income at once because the number looked good. That turns twelve prices into a single bet placed on a date you chose by mood.
- Holding everything in reais because Brazil’s rate is high, while your obligations are in dollars. The same mistake, mirrored: the high rate is the payment for carrying the currency, not a gift.
- Paying for protection on the 69% that was never exposed. Hedging instruments exist, they are priced, and they are not a savings account.
- Judging the result each month by whichever yardstick flatters it. Pick the currency your goal is denominated in and measure in that one, always.
Start with two columns
Write next month’s obligations in two columns: things payable in reais, things payable in your earning currency. Most people have never separated them, and the separation is 80% of the work.
Then run the nine lines, decide the size of your reais buffer, and put a fixed monthly conversion date in the calendar. Three decisions, none of which require knowing where the rate goes. The rest of the sequence — the cost of moving the money, and where the reais sit while they wait — is mapped in the full guide to earning abroad with money in Brazil.